Practice Functionality of Isolated I/O - 25.4.2 | 25. Programmed I/O Overview | Computer Organisation and Architecture - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is polling in the context of I/O operations?

💡 Hint: Think about the CPU's repetitive checking.

Question 2

Easy

What are control commands?

💡 Hint: Recall the commands you would use to start a process.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary function of an I/O module?

  • Directly connects devices to CPU
  • Manages data transfer between CPU and I/O
  • Performs arithmetic operations

💡 Hint: Consider the role of management in data processes.

Question 2

True or False: Polling is an efficient method for CPU communication with I/O devices.

  • True
  • False

💡 Hint: Reflect on how resources are used during repeated checks.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have a CPU with a 16-bit address bus and need to incorporate 128 I/O devices. Calculate the memory and I/O space allocation needed if you choose isolated I/O.

💡 Hint: Calculate the total addressing capacity available and how much is needed for devices.

Question 2

Discuss how the choice of polling versus interrupts might affect the design of a real-time system.

💡 Hint: Consider the timeliness of responses for critical systems.

Challenge and get performance evaluation